dev.onpage/onpage
OnPage.dev
Free SEO MCP that closes the loop: find, fix, ship as a PR or to a CMS, prove. 37 tools, no key.
alive probed 2026-10-15 · HTTP 200
37tools
29ktokens in Claude Opus 5.5
29ktokens in Claude Code
14.6 %of a 200k context window
17ko200k_base estimate
301 msto initialize
215 msto list tools
- Endpoint
- https://onpage.dev/mcp (streamable-http)
- Host
- onpage.dev
- Protocol
- 2025-11-25
- Reports itself as
- onpage-dev 2.11.0
- Capabilities
- prompts, resources, tools
- Instructions
- 2 173 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/seoonpage/seo-mcp-server
- Website
- https://onpage.dev/mcp
- Registry
- active, updated 2026-10-14 · registry entry
- Reachable
- 9 of the last 9 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| backlinks | 949 | 6 % |
| find_opportunities | 805 | 5 % |
| local | 805 | 5 % |
| site_audit | 790 | 5 % |
| content | 790 | 5 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-15 09:58 | alive | 855 ms | 37 | 29k | 17k |
| 2026-10-14 09:17 | alive | 1.1 s | 37 | 29k | 16k |
| 2026-10-13 11:11 | alive | 193 ms | 37 | 29k | 16k |
| 2026-10-12 11:36 | alive | 1.7 s | 88 | 42k | 25k |
| 2026-10-10 10:10 | alive | 1.9 s | 70 | 28k | 17k |
| 2026-10-09 11:14 | alive | 1.1 s | 55 | 19k | 12k |
| 2026-10-08 11:08 | alive | 1.0 s | 50 | 17k | 10k |
| 2026-10-07 11:06 | alive | 749 ms | 39 | 12k | 7.5k |
| 2026-10-06 10:55 | alive | 301 ms | 20 | 4.9k | 3.0k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.onpage/onpage)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.